Draft rigging



Nov.. 13 ,1923.-

D. s. BARROWS DRAFT- RI'GGING Filed Deo. 50. -19'21 Patented "Nov, 13, llQZSl..

STTE Fil.,

DONALD S. BARBWS, OF ROCHESTER, NEW YORK, ASSIGNOR TO TEE T. H.'SYMI1\TGTON sopesar, or Naw Yoan, N. Y.,

neuarti- A CORPORATION 0F DELAWARE.

DRAFT RIGGING.

Application filed December 30, 1921.l Serial No. 525,875. i

To all whom 'it 'may concern:

Be it known that I, DONALD S. BARRows, a citizen of the United States, residing at Rochester, in the County of Monroe and State of New York, have invented certain new and useful Improvements in Draft Rigging; and I do hereby declare the following4V said sills from spreading.

The principal object of my invention,

generally considered, is to provide a unitary metallicback stop having its end walls, webs, and anges arranged and disposed so as to economically distribute the metal to thereby produce a casting which is of great strength yet light in weight. l Another object of my invention is to provide aback stop casting in which the buling face is adequately braced so as to effectively resist all buing stresses to which the same may be subjected and to distribute the stresses throughout 'the casting to best advantage. l

To this end the primary feature of the invention, generally stated, comprises the formation ofa back stop casting constructed of a substantially l-beam section to provide a casting of uniform strength.

Another feature of my invention is to provide a box-shaped casting havin the transverse connecting web sloping ownwardly and outwardly from the longitudinal center line thereof so as to provide maximum strength without materially increasing the height of the side walls and yet at the same time providing adequate riveting area the side walls.

Other features of the invention will be pointed out n detail of the following description of the particular embodiment Aof my invention which has been chosen for the purpose of illustration. p

In the drawings Figure 1 is a top planview of. a back stop casting constructed in accordance with my invention.

Figure 2 is a side elevation of the construction shown in Figure 1.

Figure 3 is a transverse 'sectional view taken on line 3--3 of Figure 2, the direction of view being indicated by the arrows at the ends of said section line.

Figure 4 is a view in elevation of the inner or rear end of the casting.

Figure 5 is a longitudinal section taken on line 5-.5 of Figure 1 and looking in the direction indicated by the arrows adjacent the ends of said section line.

The numeral 1 designates the casting generally, which is provided with a front wall or flange 2, a rear ,wall or flange 3, a plurality of side walls 4, and' a connecting web 5 preferably integrally united with the side and end walls, as clearly shown in Figure 1. formed with an inwardly extending intermediate portion 6 so as to conform to the rear end of the ordinary horizontal yoke 7, shown in dot and dash lines in Figure 1. The side walls are suitably perforated, as :1t-8, to provide openings for the sill attaching rivets 9 shown in Figure 3.

The rear portions of the lower side walls are preferably'o'set, as at 10, from the vertical planes of the side walls so as to provide pockets or recesses 11 to receive the web portions of the center. or draft -sill reinforcing means 12. g

The transverse web 5 is preferably in the form of an inverted V having its central portion at higher elevation than the portions thereof which are -joined to the side walls 4. By so forming the transverse web it is possible to provide a double row of rivet openings above the web in the side walls and a single-row of rivet openings below the web.A Since the casting is not provided with either acover or floor plate, it will be observed that these rivet openings are respectively accessible from the top and bottom' of the casting which is of great advanta in driving rivets and in inspection of t e device when in service. It will be observed that the web 5 intersects the buingA face 2 of theA casting on the longitudinal center line thereof at approximately the central point of the said web or end wall 2. The rear wall 3 of the stop casting is preferably The front wall 2 is preferably v'same end wall is raised above and out 'of line with the usual center bearing plate with which railway cars are provided.l rllhe transverse web, it will be observed, intersects the rear wall 3 at the side edges thereof approximately in line with the bottom edge of this rear wall.

To further increase the rigidity of the -web 5 and the end walls 2 and 3, I provide a longitudinally extending flange 13 which extends above and below the said web 5 and which, by means of fillets 14, extends the full height of the end walls 2 and 3. Further reinforcing means may be provided, if desi-red, in the shape of triangular fillets or flanges 15. As illustrated in the drawing, I providefour sets of these fillets, two being arranged to connect t'he upper portion of the web 2 with the web 5, twobeing arranged, preferably in alinement with the upper two respectively, to connect the lower face of the web 5 with the web 2,. and a. corresponding arrangement is provided at the rear of the casting, as clearly shown on the drawings.

In the particular embodiment of my 1nvention, as here illustrated, it will be observed that tlie section modulus which lresists the bufiing shocks transmitted from the draft rigging cushioning elements and fromthe coupler when these shocks exceed the capacity vof the cushioning elements, is large for thc amount of metal used and is substantially uniform throughout themajor portion of the casting.

It will also be apparent that the casting is a simple and economical construction to manufacture since the ianges and webs are parallel to the side walls or at right angles thereto, thus obviating the 'use of cores in the manufacture of the casting. Moreover, by maintaining substantially .uniform section throughout the casting I avoid all checks and,A cracks, due to the unequal cooling of different thicknesses of metal at adjacent points.

1. A back stop casting for railway draft rigging comprising a pair of transversely extending walls connected by a web of in- Largas@ yerted V-shape and having side walls united to the end walls and to said connecting'web.

2. A back stop casting for railway draft rigging comprising front and rear transversely extending walls connected by a longitudinally extending web ofXinve-rted V- shape and having side walls of greater-depth than said end walls.

3. A back stop casting rigging comprising an integral casting having a longitudinal cross section of substantial I-shape, and a connectingweb which slopes from the longitudinal center line of the casting.

4. A back stop casting for railway draft rigging comprising a pair of transversely extending webs` one of which is concaved for railway draft I transversely of the draft rigging and adapted to engage the draft yoke and limit the movement thereof in one direction, said web conforming in contour tothe adjacent por-"" tion of the said yoke.

5. A back stop casting for railway draft rigging-comprising a pair of end walls, a pair of side walls, and means for connecting all of the said walls, said means comprising a web of substantially inverted V-shape, the central portion of said web intersecting one of said end walls adjacent the centei line thereof.

6. A back stop casting for railway draft rigging comprising end walls, side walls, and a connecting web, said casting being substantially symmetrical, the cross sectional area of said casting at opposite ends being equal.

7. A. back stop castingfor railway dra-ft rigging comprising spaced end walls and spaced side walls, all of said walls being connected by a web whose elevation increases from a point. adjacent the side walls toward the longitudinal center line of said casting.

8. A. back stop casting .for railway draft rigging comprising a-pair of end walls and a pair of side walls, a transversely extending web connecting all of said wallsa longitudinally disposed web connecting the said end walls and'attached to said web, and additional webs joining said end walls to said web.

In testimony' whereof I affix my signature.

DoNALD s. Banaows. 

